Fire-plug and collapsible joint.



110.891,279. PATBNTED JUNE 2a, 1908.

4 H'. 'W.-MARTIN. FIRE PLUG ANDv coLLAPsIBLB JOINT.

. APPLIGATION TILEDJAN. 13, 1 908.

A IfEMaN Mm? TIN.

HERMAN W. MARTIN, OF UTICA. NEW YORK.`

FIRE-PLUG AND COLLAPSIBLE JINT;

l Specification of Letters Patent. Application filed January 13, 1906, Serial No. 295,859..

Patenten :rune 23, 190s.

To'all whomit may concern:

I 3e 1t known that I, HERMAN W. MARTIN, a citizen of `the United. States, residing at Utica, in the county of Oneida and 'State of New York, have invented certain new and useful Im rovements in Fire-Plugs and Col-` lapsible oints, of which the following is a specification, reference kbeing had therein to t e accompanying drawing.

plug and collapsible joint, and I eclare that the following is a full, clear, concise and exact description thereof, suiiicient to enable che skilled in the art to make and use the same, reference being' had to the accompanying drawings in which like letters and numerals referto like parts throughout.

The invention relates to that class of'de-y vices which are in use in factories and other places, provide protection against fire, by `mounting a plug on the water ou'tlet which under high temperature will automatically open the water pipes.

I show in the illustration an improved type of fusible joint and also an improved plug, the two being combined in a device of pecul-l iar eiciency, simplicity and reliability.

In the drawings, Figure 1 is a side view in section, showing certain details, only .in a general way; Fig. 2 is an edge view, part broken away; Fig.- 3 is a section view showing details of construction of the plug and the water outlet, the plug being in loose contact; Fig. 4. is a detail view of the same, the plug being in close contact, Figs. 5 and 6 and 6 are detail views of the same parts, showing a slightly modiiied .form of construction, latter indicating that the washer 1 may be in two parts not integral; Fig. 7 is a perspective view of the plug and its spring washer;

Figs. 8 and 8a are front and side views of amodiiied form of collapsible joint; Figs.'9.

and 9at are like views of a modified 'construcf tion of the same; and Figs. 10 and 10 are like views of a further modification.

Referring to the drawings more in detail, A represents the outlet end of a water pipe, having mounted thereon' the strut or y re B having a screw-threaded bore bat the end opposite the Water outlet for the set screw C which is used to adjust the position of the collapsible joint which holds the plug D in place and which is sealed by wax` or otherwise, as indicated by c, after testing and adthe members which My invention relates to an improved ireil l Vsea ing the p ug on t jec'ting slightly inwar is slightly in connection with a'water system, to

some of the 'members bein -wlat soft Ymetal so as to crm .tight joints outer edge, 1a, rests justment to prevent any tampering with the device or altering the conditions. E is a distributing cap to effect distribution Aof the water as it pours from the outlet. The plug D may be formed of any solid substance, preferably metal, and has annular 1 rim d on its up ersurface to confine the low'er end of the co a plug has an annu ar liar'e d to hold certain of erforrn the function of sible joint members. The

e'outlet and has at its j inner end a spring Washer 4. The outlet member A is recessed at A', as clearly. shown in Fig.' 3, theinn'er ed e of the recess, @,p'r'othe plug D so that thediameter of the outlet smaller than the diameter'of" the at that part', a', which abuts on the outlug Themember A also has annular shoulder. c to'support the' Aouter rim ofcer-tain of the sealing members.

The sealing mem 4ers comprise a number of rings or washers, some of them being resilient toinsure a free opening for the water when the joint'collapses and together forming a joint which is water tight -on the water side` and air or vapor tight on the other side,

made of somewhen the lug is forced on the outlet. In Figs. 3 andpl I have shown one style of these members toillustrate their eneral form and principle of coperation, wh1le in Figs. 5 and 6- they'are shown of a slightly different form, Fig. 6a showing that one' of the washers, 1, may be made in two parts. bers comprise a ring or'washer 1, made ypreferably of a non-corrosive, com ratively4 tm or lea ,so as to soft metal, such-as pure be adapted to form a tight joint with the adjacent housing and .ring or washer. -Its onshoulder, ing or pipe A and its inner edge, 1b, rests on shoulder, 1b, of the same. ring may be of the general'shape shown in 1y beyond the edgeof This washer or,

sof

The said mem- Figs. 3 and 4 or it may be cup shaped 'as shown in Fig. 5 or, further, may; consist of two parts as shownin Fig. 6a. In any case it is outl of the way of the outpour of water from the outlet pipe. There yis a concave spring disk, the edge of washer, 1, being adap thereon when the plug 1s which overlaps the edge, 1b, of ted Ito 'liess firmly locked 1n and make a water-tight'joint. Disk 4 may be of 11g 4, on the inner end of the plugD,

, suitable metal, preferably non-corrosive andl tween the edges and against which adjacentl having a degree of resiliency to insure dislacement of the plug when vthe joint colapses. Above washer 1 is a'spring ring or washer, 2, which I prefer to make of German silver and is given considerable resiliency. Its outer edge rests on edge, l, of washer 1, the two edgesfilling the space above shoulder a. In Figs. 3 and 4 this ring is shown with an upward circumferential curve bewasher 3 presses strongly when the plug is locked, thus puttingthe spring 2 under tension.' In Figs. 5 and 6 ung 2 is shown of slightly convex form, the function being the same, however, in either case. I rely rin` cipally on this spring washer for the or'ce necessary to separate the severalparts of the seal when the joint collapses, and any suitable form or material may be adopted.'

Above this a tin'or other suitable non-corrosive ring or Washer 3, and which also has some resiliency in order that the outer edge, which overlaps the edge of 1 and 2, may be crowded down in an a1r tight joint-upon the housing A wheny the plug is locked, the Washer being immediate y under the part'd of the plug. The washer (preferably has a slight upward curve aroun it, between the edges, to bear on plug D. An important function of this washer is to make a'tight joint to exclude air or vapor from the spring washer 2 which is therefore protected on each hand from the deterioratlon naturally resulting from exposure to water or vapors and air, and which is to be guarded against in any successful device of this kind. A fur ther function' is that, being of a non-corrosive character adhesion of the parts at the joint is obviated. To further prevent corrosion the joint of washer 3. wit housing A may be covered over, if desired, with a thin coat of wax or the like, as indicated by 3a in Fi 5. In closed or locked position of the plug D the washer 3 forms a seal with spring washer 2, and I have by the construction shown provided a plurality of seals againstthe escape of water and yet have provided protection for the main spring member on each side and insured prompt release and displacement of the arts when the lock collapses.

T e pressure of the joint members upon the plug crowds it against the several spring' tudinal element of that resolved force.

end'against which the screw C bears at a' point one side of the axis of the joint, and the other` end has two oiisets 5b, one on each side of the bar 6. These offsets are disposed in a return position on the strip 5 so as to provide surfaces which are oblique to the bar 6. Part 6 at the lower end 'is adapted to fit into the recessed part of the plug D formed by the annular rim d, and at the other end bears against the offseta of the other member, being beveled at that end as shown so as .to provide Jfor ready collapse of the joint. The natural tendency being for these members to sep arate under the pressure of the plug, I vrovide a transverse lockin member 7 w ich may be designated as a ro ling or escapement lock and may be given a variety of forms. Its ends lie between the inner face of the prongs or offsets 5b and the adjacent face of the member 6 so that the force which tends to separate the members 5 and 6 4is resolved and the lock member 7 needs to be secured only firmly enough to overcome the logie locking member 7 is thus exposed to the direct action of heat and may be secured in place by a fusible solder or other means, which at high temperature will release' its hold against the longitudinal acting force. The solder may be applied to hold the locking member 7 to bar 6 or to the olfsets 5b.

' The contact edges `between 5b and 7 may be of diiferent angles so as to obviate any friction as is particularly shown in Fig. 9 where the locking member consists of a round bar. The locking member may have a greater or less surface between the ends, which permits additional solder connection between it and the connectedl parts, such different forms being shown in Figs. 2, 8 and 10.

Fig. 2 shows a form of escapement lock somewhat different from those shown in Figs. 8 and 9. Fig. 10' shows a further variety where the lock has further lugs 7a resting on the face part 6 and which, being bent from one end to the other, furnish a resiliency when the member is properly mount- 'ed and which tends to force the lock out of engagement when the heat has weakened th solder.

Various modiiications may be made of my device without departing from the spirit and scope of my invention, andI do not mean tov limit myself in any way to the particulars here given. l

Having described my invention, what I claim as new and desire to secure `by letters patent, is: i l y 1. In a 1Cire plug, the combination with an. outlet member of a removable plug with an annular collar and ringlike members around the plug and between the outlet member and the collar ofthe plug com rising a resilient member to force the plu-g om its seat, substantially as shown 'outlet member .o a removable plug with a' resilient washer thereon-capping 'the outletv and ringlike members between the outlet and l t e plug and around' the plug, comprising a tion, substantially as'shown.

resilient member-to force the plug from its' seat, and a member preventing corrosion between theoutlet portion and the plug por- 4. A lire plug having any outlet lmember v with a'portion recessed, a plu portion` seated in said recessed portion and aving a collar thereonwand washer members disposedbe'- tween'tlie outlet and the collar, said memp' bersr being ada ted to provide al plurality of 'contacts 4to sea the outlet -and comprising a noncorrosive member, substantially as shown, j

5. In a fire plug, the combination-witllan o a removableplug with lan outlet member, annular collar, and ring-like members around ,the plu andV between the outlet member and the colar of the plug, lsaid memberscomprising a non-corrosive member, substantially as. shown.

`6. In a device of tbecharacter described,' a plug'with an annular collar, an outlet member with abutments around the plug, a spring ring between the plug collar and the abutments and means forming a tight joint at the inner and the outer periphery of said spring rin A l Ign testimony whereof I aiix my signature in presence ofA two Witnesses.

` HERMAN W. MARTIN. Witnesses:

E, E. RISLEY, E. T. DE Groer 

